{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Anatomy"], "input": "OBJECTIVE : To investigate the effect of vascular bundle implantation in autogenous bone graft on angiogenesis ."}
{"Anatomy": ["vascular bundle", "autogenous bone graft"]}